Devouring Leviathan

A mentally ill seventeen year old is brought to a fantasy tutorial with the girl of his dreams. He gains a mysterious Skill known as the Devouring Leviathan, one that reflects his inner nature, his desire to consume, and the eternal void that exists within his soul. In a forest with several other humans, he must navigate the environment without dying to fantasy creatures, grow stronger, and maintain his sanity... without giving into his darker impulses.